Implement accessible BoundsForRange on Mac

content/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/basictypes.h"
@@ skipping 3064 matching lines @@
 // word in a text field.
 - (void)accessibilitySetTextSelection:(int32)accId
                           startOffset:(int32)startOffset
                             endOffset:(int32)endOffset {
   RenderWidgetHostImpl* rwh = renderWidgetHostView_->render_widget_host_;
   rwh->AccessibilitySetTextSelection(accId, startOffset, endOffset);
 }
 
 // Convert a web accessibility's location in web coordinates into a cocoa
 // screen coordinate.
-- (NSPoint)accessibilityPointInScreen:
-    (BrowserAccessibilityCocoa*)accessibility {
-  NSPoint origin = [accessibility origin];
-  NSSize size = [[accessibility size] sizeValue];
+- (NSPoint)accessibilityPointInScreen:(NSPoint)origin
+                                 size:(NSSize)size {
   origin.y = NSHeight([self bounds]) - origin.y;
   NSPoint originInWindow = [self convertPoint:origin toView:nil];
   NSPoint originInScreen = [[self window] convertBaseToScreen:originInWindow];
   originInScreen.y = originInScreen.y - size.height;
   return originInScreen;
 }
 
 - (void)setAccessibilityFocus:(BOOL)focus
               accessibilityId:(int32)accessibilityObjectId {
   if (focus) {
     RenderWidgetHostImpl* rwh = renderWidgetHostView_->render_widget_host_;
     rwh->Send(new AccessibilityMsg_SetFocus(
         rwh->GetRoutingID(), accessibilityObjectId));
 
     // Immediately set the focused item even though we have not officially set
     // focus on it as VoiceOver expects to get the focused item after this
     // method returns.
     BrowserAccessibilityManager* manager =
         renderWidgetHostView_->GetBrowserAccessibilityManager();
     manager->SetFocus(manager->GetFromRendererID(accessibilityObjectId), false);
   }
 }
 
 - (void)performShowMenuAction:(BrowserAccessibilityCocoa*)accessibility {
   // Performs a right click copying WebKit's
   // accessibilityPerformShowMenuAction.
-  NSPoint location = [self accessibilityPointInScreen:accessibility];
+  NSPoint origin = [accessibility origin];
   NSSize size = [[accessibility size] sizeValue];
+  NSPoint location = [self accessibilityPointInScreen:origin size:size];
   location = [[self window] convertScreenToBase:location];
   location.x += size.width/2;
   location.y += size.height/2;
 
   NSEvent* fakeRightClick = [NSEvent
                            mouseEventWithType:NSRightMouseDown
                                      location:location
                                 modifierFlags:0
                                     timestamp:0
                                  windowNumber:[[self window] windowNumber]
@@ skipping 797 matching lines @@
   return YES;
 }
 
 - (BOOL)isOpaque {
   if (renderWidgetHostView_->use_core_animation_)
     return YES;
   return [super isOpaque];
 }
 
 @end